As a novelist I spend hours either at my computer locked in my imaginary worlds. All too often my brain is overworked and needs to be nurtured with fresh air, by opening a window and taking deep breaths to increase my supply of oxygen which stimulates my brain.
My brain also needs nourishing food at regular intervals,so I need to resist the temptation to have junk food. A handful of nuts and seeds are better than biscuits and freshly cooked meals are superior to frozen ones.
For my brain and body to function efficiently it's necessary to have regular breaks from writing, resist the temptation to stay up till midnight writing away and have eight hours sleep.
Since adopting these measures I have a greater sense of well being and suggest anyone who spends hours working at the computer or laptop tries them.